Thanks for the feedback. The changes were made in A1902AB9-5394-45F2-857A-12824213EEFB_1_9.ROM only (Slic 2.0 to 2.1, lock removed, ALASKA AMI to _ASUS_Notebook (twice)).
OK, not permanent. Dynamic method. Can you please tell me which Phoenixtools version did you use to make the mod? Thank you in advance.